package com.lxmes.common.utils;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.management.ManagementFactory;
import java.net.HttpURLConnection;
import java.net.URL;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    public static String YYYY_MM_DD_HH_MM = "yyyy-MM-dd HH:mm";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }
    public static String getMonth() {
        return dateTimeNow(YYYY_MM);
    }


    /**
     * 获取上个月月份
     * @return
     */
    public static final String getLastMonth() {
        SimpleDateFormat format = new SimpleDateFormat(YYYY_MM);
        Date date = new Date();
        Calendar calendar = Calendar.getInstance();
        // 设置为当前时间
        calendar.setTime(date);
        calendar.add(Calendar.MONTH,-1);
        // 设置为上一个月
        //calendar.set(Calendar.MONTH, calendar.get(Calendar.MONTH) - 1);
        date = calendar.getTime();
        return format.format(date);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date) {
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 计算两个分钟差
     */
    public static String getDifferenceMin(Date endDate, Date nowDate) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少分钟
        long min = diff % nd % nh / nm;

        return String.valueOf(min);
    }
    /**
     * 计算两个分钟差
     */
    public static String getDifferenceMin2(String startTime, String endTime) {
        DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm");
        try
        {
            Date d1 = df.parse(startTime);
            Date d2 = df.parse(endTime);
            long diff = d2.getTime() - d1.getTime();//这样得到的差值是微秒级别
            long days = diff / (1000 * 60 * 60 * 24);
            long hours = diff / (1000 * 60 * 60 );
            long minutes = diff / (1000 * 60 );

//            long hours = (diff-days*(1000 * 60 * 60 * 24))/(1000* 60 * 60);
//            long minutes = (diff-days*(1000 * 60 * 60 * 24)-hours*(1000* 60 * 60))/(1000* 60);
//            System.out.println(""+days+"天"+hours+"小时"+minutes+"分");
            return minutes+"";
        }catch (Exception e)
        {
        }
        return null;
    }



    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 获取当前月第一天
     *
     * @param
     * @return
     */
    public static String getFirstDayOfMonth() {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        String firstday;
        Calendar cale = Calendar.getInstance();
        // 获取前月的第一天
        cale = Calendar.getInstance();
        cale.add(Calendar.MONTH, 0);
        cale.set(Calendar.DAY_OF_MONTH, 1);
        firstday = format.format(cale.getTime());
        return firstday;
    }

    /*
    * 获取上个月的最后一天
    * */
    public static String  LastDayOfPreviousMonth() {
        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.MONTH, -1);  // 获取上个月
        int lastDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);  // 获取该月最后一天
        calendar.set(Calendar.DAY_OF_MONTH, lastDay);  // 设置日期为最后一天
        System.out.println(calendar.getTime());  // 输出结果

        return dateTime(calendar.getTime());
    }

    /*
     * 获取当月的最后一天
     * */
    public static String  LastDayOfCurrentMonth () {
        Calendar calendar = Calendar.getInstance();
        int lastDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);  // 获取该月最后一天
        calendar.set(Calendar.DAY_OF_MONTH, lastDay);  // 设置日期为最后一天
        System.out.println(calendar.getTime());
        return dateTime(calendar.getTime());
    }



    /**
     * 获取今天是周几
     *
     * @param
     * @return
     */
    public static String getWeek() {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(new Date());
        int index = calendar.get(Calendar.DAY_OF_WEEK) - 1;
        String[] weeks = new String[]{"星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
        return weeks[index];
    }

    public static String getWeek(Date date) {
        String[] weeks = {"星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"};
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int week_index = cal.get(Calendar.DAY_OF_WEEK) - 1;
        if (week_index < 0) {
            week_index = 0;
        }
        return weeks[week_index];
    }

    /**
     * 获取某个月有几天
     *
     * @param
     * @return
     */
    public static Integer calDayNumbersByMonth(Integer year, Integer month) {
        if (month != null) {
            switch (month) {
                case 1:
                case 3:
                case 5:
                case 7:
                case 8:
                case 10:
                case 12:
                    return 31;
                //对于2月份需要判断是否为闰年
                case 2:
                    if (year % 4 == 0 && year % 100 != 0) {
                        return 29;
                    } else if (year % 400 == 0){
                        return 29;
                    } else {
                        return 28;
                    }
                case 4:
                case 6:
                case 9:
                case 11:
                    return 30;
                default:
                    return null;
            }
        } else {
            return null;
        }
    }
    /**
     * 获取某日是不是节假日  上班日  周末
     * 0 上班 1周末 2节假日
     * @param
     * @return
     */
    public static String request(String date) {
        SimpleDateFormat f = new SimpleDateFormat("yyyyMMdd");
        String httpArg = f.format(parseDate(date));
        String httpUrl = "http://tool.bitefu.net/jiari/";
        BufferedReader reader = null;
        String result = null;
        StringBuffer sbf = new StringBuffer();
        httpUrl = httpUrl + "?d=" + httpArg;
        try {
            URL url = new URL(httpUrl);
            HttpURLConnection connection = (HttpURLConnection) url
                    .openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            InputStream is = connection.getInputStream();
            reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            String strRead = null;
            while ((strRead = reader.readLine()) != null) {
                sbf.append(strRead);

            }
            reader.close();
            result = sbf.toString();
        } catch (Exception e) {
            e.printStackTrace();

        }

        return result;

    }



}
